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R5F523E5MDNF: 32-bit Microcontroller with Integrated 24-bit Delta-Sigma Analogue/Digital Converter up to 125kSPS

Model: R5F523E5MDNF

Package: HWQFN-40

Type: RX23E-B Series - 32-bit Microcontroller MCUs

Overview:

The RX23E-B series microcontrollers feature a built-in analogue front-end (AFE) and are ideal for industrial sensor devices. The RX23E-B's 24-bit Delta Sigma analogue/digital converter offers improved high-speed performance and noise performance over the previous generation RX23E-A. The RX23E-B is a 32-bit microcontroller MCU with a built-in analogue front-end (AFE). The maximum data rate of 125kSPS is very fast for a Delta Sigma A/D converter and is 8 times faster than the RX23E-A. RMS noise has been reduced to about 1/3 of that of the RX23E-A, enabling high-speed and high-precision measurement of strain gages, temperatures, pressures, flows, currents, voltage signals, and more. In addition, the RX23E-B integrates a 16-bit digital/analog converter and +/-10V high-voltage analogue signal input circuitry, reducing the overall bill of materials (BOM) and footprint. Equipped with the RXv2 core, this CPU provides excellent digital signal processing (DSP)/floating-point operation (FPU) for high-precision measurement, control, and communication on a single chip.

R5F523E5MDNF - Key Features:

Analogue Front End (AFE)

- 24-bit Delta-Sigma analogue/digital converter with integrated programmable gain amplifier: up to 24-bit effective resolution, data rates 3.8SPS to 125kSPS, 4nV/°C offset drift, 1ppm/°C gain drift

- 5V analogue inputs: 8 differential inputs, 16 single-ended inputs

- ±10V analogue inputs: 2 differential inputs, 4 single-ended inputs

- 16-bit D/A converter: DNL = ±1LSB, INL = ±5LSB

- Reference voltage source: 10ppm/°C low temperature drift performance for excellent temperature stability

- Excitation current source: Matched programmable current source, ideal for measuring 3-wire resistance temperature probes

MCU

- CPU: 32-bit RXv2 core operating at 32MHz, digital signal processing via DSP instructions and FPU

- Communication interfaces: SPI x 1 channel, UART x 7 channels, I2C x 1 channel, CAN x 1 channel

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